4789942991 has 2 divisors, whose sum is σ = 4789942992. Its totient is φ = 4789942990.

The previous prime is 4789942943. The next prime is 4789943009. The reversal of 4789942991 is 1992499874.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4789942991 - 2²² = 4785748687 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4789942691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2394971495 + 2394971496.

It is an arithmetic number, because the mean of its divisors is an integer number (2394971496).

Almost surely, 2^4789942991 is an apocalyptic number.

4789942991 is a deficient number, since it is larger than the sum of its proper divisors (1).

4789942991 is an equidigital number, since it uses as much as digits as its factorization.

4789942991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11757312, while the sum is 62.

The square root of 4789942991 is about 69209.4140345083. The cubic root of 4789942991 is about 1685.6863943597.

The spelling of 4789942991 in words is "four billion, seven hundred eighty-nine million, nine hundred forty-two thousand, nine hundred ninety-one".